the air passage behind the nose from which moisture is added to the air you breathe during the breathing process

A chamber in the skull that is bounded by the internal and external nares.

Space in the skull, behind the nose, through which inhaled air passes on its way to the lungs.

Interior area of the nose; lined with a sticky mucous membrane and contains tiny, surface hairs called cilia.

either of the two cavities lying between the floor of the cranium and the roof of the mouth and extending from the face to the pharynx

An opening leading from the face through the nose and into the pharynx, or throat.

A system of air channels connecting the nose with the back of the throat.

The nasal cavity (or nasal fossa) is a large air-filled space above and behind the nose in the middle of the face.